<template>
	<view>
		<view class="search-box">
			<uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		<!-- 搜索建议区域 -->
		<view class="sugg-list" v-if="searchResults.length!==0">
			<view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item)">
				<view class="goods-name">{{item.goods_name}}</view>
				<uni-icons type="arrowright" size="16"></uni-icons>
			</view>
		</view>
		<!-- 搜索历史 -->
		<view class="history-box" v-if="searchResults.length===0">
			<!-- 标题区域 -->
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons type="trash" size="17" @click="clean"></uni-icons>
			</view>
			<!-- 列表区域 -->
			<view class="history-list">
				<uni-tag :text="item" v-for="(item,i) in historys" :key="i" @click="gotoGoodsList(item)"></uni-tag>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				timer: null,
				kw: '',
				searchResults: [],
				historyList: []
			};
		},
		methods: {
			input(e){
				clearTimeout(this.timer)
				this.timer = setTimeout(()=>{
					this.kw = e
					this.getSearchList()
				},500)
			},
			async getSearchList(){
				
				if(this.kw.length===0){
					this.searchResults=[]
					return
				}
				const {data:res} = await uni.$http.get('/api/public/v1/goods/qsearch',{query: this.kw})
				if(res.meta.status!==200) return uni.$showMsg()
				this.searchResults = res.message
				this.saveSearchHistory()
			},
			gotoDetail(item){
				console.log(item.goods_id)
				uni.navigateTo({
					url: '/subpkg/goods_detail/goods_detail?goods_id' + item.goods_id
				})
			},
			saveSearchHistory(){
				const set = new Set(this.historyList)
				set.delete(this.kw)
				set.add(this.kw)
				this.historyList = Array.from(set)
				uni.setStorageSync('kw',JSON.stringify(this.historyList))
			},
			clean(){
				this.historyList = []
				uni.setStorageSync('kw','[]')
			},
			gotoGoodsList(kw){
				uni.navigateTo({
					url: '/subpkg/goods_list/goods_list?query=' + kw
				})
			}
		},
		onLoad() {
			this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
		},
		computed: {
			historys() {
				return [...this.historyList].reverse()
			}
		}
	}
</script>

<style lang="scss">
.search-box {
	position: sticky;
	top: 0;
	z-index: 9999;
}
.sugg-list {
	padding: 0 5px;
}
.sugg-item {
	font-size: 12px;
	padding: 13px 0;
	border-bottom: 1px solid #efefef;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.goods-name {
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	margin-right: 3px;
}
.history-box {
	padding: 0 5px;
}
.history-title {
	display: flex;
	justify-content: space-between;
	height: 40px;
	align-items: center;
	font-size: 13px;
	border-bottom: 1px solid #efefef;
}
.history-list {
	display: flex;
	flex-wrap: wrap;
}
.uni-tag {
	margin-top: 5px;
	margin-right: 5px;
}
</style>
